Aftershock

After immobilizing an enemy champion, increase your Armor and Magic Resist by 45 + 75% of your Bonus Resists for 2.5s. Then explode, dealing magic damage to nearby enemies. Damage: 25 - 120 (+8% of your bonus health) Cooldown: 20s Resistance bonus from Aftershock capped at: 80-150 (based on level)

Tree

Resolve

Row

Keystone

In short

After immobilizing an enemy champion gain defenses and later deal a burst of magic damage around you.

Patch

16.16.1